2520304345 has 16 divisors (see below), whose sum is σ = 3258178560. Its totient is φ = 1860479424.

The previous prime is 2520304313. The next prime is 2520304393. The reversal of 2520304345 is 5434030252.

2520304345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2520304345 - 2⁵ = 2520304313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245016 + ... + 255094.

It is an arithmetic number, because the mean of its divisors is an integer number (203636160).

Almost surely, 2^2520304345 is an apocalyptic number.

It is an amenable number.

2520304345 is a deficient number, since it is larger than the sum of its proper divisors (737874215).

2520304345 is a wasteful number, since it uses less digits than its factorization.

2520304345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 2520304345 is about 50202.6328492839. The cubic root of 2520304345 is about 1360.8732038271.

Adding to 2520304345 its reverse (5434030252), we get a palindrome (7954334597).

The spelling of 2520304345 in words is "two billion, five hundred twenty million, three hundred four thousand, three hundred forty-five".